TOTAL VOLUME:
$154.3b
24H VOL:
$228,458,490
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,879,276,037
410,833
Markets across
40,345
events
MATCHED EVENTS:
4,363
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 9, 1:38 AM EST
Polymarket
This market refers to the tennis match between Keisuke Saitoh and Akira Santillan in the Wuning 3, originally scheduled for October 8, 2026 at 10:00PM ET. This market will resolve to 'Keisuke Saitoh' if Keisuke Saitoh advances against Akira Santillan. This market will resolve to 'Akira Santillan' if Akira Santillan advances against Keisuke Saitoh. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 22, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Keisuke Saitoh and Akira Santillan in the Wuning 3, originally scheduled for October 8, 2026 at 10:00PM ET. This market will resolve to 'Keisuke Saitoh' if Keisuke Saitoh advances against Akira Santillan. This market will resolve to 'Akira Santillan' if Akira Santillan advances against Keisuke Saitoh. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 22, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Generally, prediction market odds often reflect a wisdom-of-the-crowd effect, potentially differing from traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, incorporating a profit margin. This market, however, is driven by individuals freely trading based on their own analysis and information. As a result, the odds here may sometimes be more accurate, particularly when incorporating information not readily available to sportsbooks or when a large number of informed traders participate. It's a fascinating comparison to observe how collective prediction differs from professional oddsmaking.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome of the Saitoh vs Santillan fight. The price of a share directly corresponds to the implied probability of that outcome occurring. As more people buy shares in a particular outcome, its price increases, reflecting growing confidence. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market dynamically adjusts based on supply and demand, providing a real-time assessment of expectations. The total volume traded influences the depth and liquidity of the market, affecting how easily trades can be executed.
This market resolves around Oct 16, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result declared by the event organizers, determining the winner of the Saitoh vs Santillan fight. The platform will then verify the result against these sources to finalize the market and distribute payouts to winning shareholders. It’s important to note that the resolution is dependent on a clear and official outcome being publicly available following the completion of the fight.
Several factors could influence the trading activity in this market leading up to Oct 16, 2026. News regarding fighter injuries, changes in training regimens, or even pre-fight press conference statements could all shift trader sentiment. Unexpected announcements about the fight’s location or rules could also play a role. Public opinion, as reflected in polls or analyst predictions, might also impact trading behavior, although the market is ultimately driven by individual traders’ assessments. Any significant development related to either Saitoh or Santillan has the potential to move the odds.